Discount coupons cannot be superimposed, and only one coupon can be used for each order. As the fresh and normal-temperature goods are delivered in two orders, one of the fresh and normal-temperature orders can only use coupons when the actual payment amount reaches the full reduction amount of coupons, and the specific amount is subject to the shopping cart. If the order is cancelled after the order is placed successfully, the coupon will be automatically returned to the account and can be used again within the validity period.